NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet
Client Name; NYC BOE Volume (liters): 1816
Lab Group #: 6897 Filter Type / Filter Area: MCE 385 mm-
Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 11 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000
GRID ID: Accelerating Voltage: 100 KeV
# Grid Openings: 4 AnalysisDate: 3/2/02
Analysis Performed By:
ROMAN PEYSAKHOV
GO Structure Structure Type Length ID of Structure \ or EDS
jNonadb
No F B C M •=^ I >=5)J Chrys Amphibole Nonasb Ambig/ND
No Coord <5u Elements)
/I. : . -I-------- f
-4
H —t
Struct = > 0.5)1 > 5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
<10% particulate coverage >50% coverage ate
laboratory identification criteria observed
7= EDS spectrum conforming to laboratory
least 20 unfolded or ovenapped grid squares <5%
holes or opaque areas
rF B C M ’5(J
identification criteria observed Chrysotile i
AMPHIBOLES Amphibole
F = Single Fiber Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite
Ambiguous
C = Cluster (>3 intersections) Anthophyllite Non-Asbestos
M = Matrix
Tremolite
Actinolite Non-Identified
NSD = No Structures Detected
CITY_21MC100_0 03102220
NYC-WTC_000183177
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